A foundation bearing capacity detection device

Abstract

The application relates to the technical field of foundation bearing capacity detection, in particular to a foundation bearing capacity detection device which comprises a detection base, a height adjusting mechanism and a guide frame installed on the top surface of the detection base. The guide frame is an inverted U-shaped frame and is arranged at the position of the rectangular through hole of the detection base. A touch probe assembly is slidably installed on the guide frame. A top plate is installed on the top of the height adjusting mechanism. A hammering mechanism for hammering the touch probe assembly is installed on the lower surface of the top plate. The touch probe assembly comprises a rod body, a hit receiving disc arranged at the top end of the rod body and a cone head arranged at the bottom end of the rod body. The rod body is composed of a plurality of detachable probe rods which are connected in a head-to-tail mode. The number of the detachable probe rods can be increased or reduced according to the detection requirement, so that the length of the rod body can be adjusted to adapt to the foundation detection requirement of different depths, thereby expanding the application range.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of foundation bearing capacity detection, and particularly relates to a foundation bearing capacity detection device. BACKGROUND

[0002] The foundation refers to the soil or rock mass supporting the foundation of a building. The soil layer serving as the building foundation is divided into rock, gravel soil, sand, silt, clay, and artificial fill. The foundation has two types of natural foundation and artificial foundation. After the foundation is compacted, a foundation detection device is generally used to detect the bearing capacity of the foundation to avoid building subsidence caused by substandard indicators.

[0003] In the prior art, a foundation bearing capacity detection device has been disclosed in a patent with the publication number CN221441463U. The striking block generates an impact on the sounding rod and the struck block. Four reset springs are activated downward. A plurality of slides are provided. The positions and sizes of the slides are adapted to the positions and sizes of the clamping grooves, so that the sounding rod can stably move up and down in the fixed cylinder, and the sounding rod can detect the foundation.

[0004] However, the above prior art has the following disadvantages: the length of the sounding rod is fixed, which may not meet the detection requirements of foundations of different depths, especially when deep foundations need to be detected, the function of the device will be limited. SUMMARY

[0005] The main purpose of the present application is to provide a foundation bearing capacity detection device to solve the above technical problems.

[0006] To achieve the above purpose, the present application provides a foundation bearing capacity detection device, which comprises a detection base, a height adjusting mechanism installed on the top surface of the detection base, and a guide frame. The guide frame is a inverted U-shaped frame and is arranged at the position of the rectangular through hole of the detection base. A sounding assembly is slidably installed on the guide frame. A top plate is installed on the top of the height adjusting mechanism. A hammering mechanism for hammering the sounding assembly is installed on the lower surface of the top plate. The sounding assembly comprises a rod body, a struck disc arranged at the top end of the rod body, and a cone head arranged at the bottom end of the rod body. The rod body is composed of a plurality of detachable sounding rods connected end to end.

[0007] Preferably, a guide pipe is integrally formed on the bottom surface of the cross beam of the guide frame. The cross beam of the guide frame and the guide pipe are provided with an upper and lower through guide hole. The rod body of the sounding assembly penetrates the guide hole. A ball is rollingly installed on the inner wall of the guide hole, and the ball is in rolling contact with the rod body.

[0008] Preferably, a threaded column is integrally formed at the top end of the detachable probe rod, and a threaded hole is arranged at the bottom end; the threaded column of the adjacent two detachable probe rods on the rod body is matched with the threaded hole; the conical head comprises a conical body and a threaded rod integrally formed on the top surface of the conical body; the threaded rod is matched with the threaded hole of the lowermost detachable probe rod on the rod body; an internally threaded pipe is integrally formed on the bottom surface of the receiving disc; the threaded column of the uppermost detachable probe rod on the rod body is matched with the internally threaded pipe.

[0009] Preferably, the hammering mechanism comprises a pair of first mounting seats and a pair of second mounting seats arranged on the lower surface of the top plate; a steel rope winding disc is rotatably arranged between the two first mounting seats; a driving motor is arranged on one of the first mounting seats, and the output shaft of the driving motor is connected with the rotating shaft of the steel rope winding disc; a guide wheel is rotatably arranged between the two second mounting seats; the steel rope on the steel rope winding disc is connected with an electromagnet block after being guided by the guide wheel, and a weight is arranged below the electromagnet block; the weight can be adsorbed on the electromagnet block.

[0010] Preferably, a limiting angle plate is arranged on the lower surface of the top plate, and the limiting angle plate is in L shape; a through hole is formed in the horizontal plate of the limiting angle plate for the steel rope to pass through; the steel rope on the steel rope winding disc passes through the through hole on the limiting angle plate downward after being guided by the guide wheel, and then is connected with the electromagnet block; a pair of limiting columns are arranged on the lower surface of the top plate; a vertical sliding groove is formed in each limiting column; two sliding blocks are symmetrically arranged on the outer circumferential surface of the weight; the two sliding blocks are respectively slidably arranged in the sliding grooves on the two limiting columns.

[0011] Preferably, the height adjusting mechanism comprises square tubes, a stand column and a gas cylinder; four square tubes are respectively vertically arranged at the positions of the four corners on the top surface of the detection base; the stand column is slidably inserted into the inner hole of the square tube; the top end of the stand column is connected with the lower surface of the top plate; a connecting beam is welded between the two square tubes at the left end of the top surface of the detection base and between the two square tubes at the right end of the top surface of the detection base; the gas cylinder is arranged at the center position on the top surface of the connecting beam; the piston rod of the gas cylinder is connected with the lower surface of the top plate.

[0012] Preferably, four extension columns are slidably arranged in the detection base; two of the four extension columns are arranged in the left end of the detection base, and the other two are arranged in the right end of the detection base; a driving mechanism is arranged on the detection base, which is used to drive the two extension columns to extend from the front end surface of the detection base and drive the other two extension columns to extend from the rear end surface of the detection base; a reinforcing mechanism is arranged at the end of each extension column.

[0013] Preferably, the reinforcing mechanism comprises a fixed block, a bottom plate and a vertical screw rod screwed on the fixed block; the fixed block is welded on the end of the extension column; the upper surface of the bottom plate is fixedly connected with a connecting sleeve; the lower end of the screw rod is rotatably installed in the connecting sleeve; a plurality of ground tapers are arranged on the lower surface of the bottom plate; a rotating wheel is fixedly connected to the upper end of the screw rod; a vertical guide rod is slidably inserted into the fixed block, and the lower end of the guide rod is connected with the top surface of the bottom plate.

[0014] Preferably, two guide grooves are respectively formed at the left end and the right end of the detection base; a connecting channel is formed between the two guide grooves at each end of the detection base; the driving mechanism comprises a power assembly installed on the top surface of the detection base and a transmission assembly arranged in the connecting channel; a protective shell is arranged on the top surface of the detection base, and the power assembly is installed in the protective shell; the power assembly is in transmission connection with the transmission assembly; the extension column is slidably installed in the guide groove and is driven by the transmission assembly.

[0015] Preferably, the transmission assembly in each connecting channel comprises two connecting shafts, and the connecting shafts are rotatably inserted into the detection base; one of the connecting shafts is arranged at a position close to the front end surface of the detection base, and the other connecting shaft is arranged at a position close to the rear end surface of the detection base; a drive gear and a synchronous wheel are respectively arranged on each connecting shaft; the synchronous wheels on the two connecting shafts are jointly sleeved with a synchronous belt; a side groove is formed on the side of the extension column close to the connecting shaft, and a toothed portion is arranged in the side groove; the drive gear on the connecting shaft at the position close to the front end surface of the detection base is in engagement with the toothed portion on the extension column extending from the front end surface of the detection base; the drive gear on the connecting shaft at the position close to the rear end surface of the detection base is in engagement with the toothed portion on the extension column extending from the rear end surface of the detection base; the power assembly comprises a double-head motor installed on the upper surface of the detection base, and a rotating shaft is connected to the output end of each end of the double-head motor; a first bevel gear is installed on the end of the rotating shaft away from the double-head motor; a second bevel gear is installed on the top end of the connecting shaft at the position close to the front end surface of the detection base, and the first bevel gear is in engagement with the second bevel gear.

[0016] Due to the adoption of the above technical scheme, the application has the following advantages:

[0017] (1) In the application, the rod body of the sounding assembly is composed of a plurality of detachable sounding rods connected end to end, so the number of the detachable sounding rods can be increased or decreased according to the detection requirements, and the length of the rod body can be adjusted to adapt to the detection requirements of foundations of different depths, thereby expanding the application range.

[0018] (2) In the present application, because the guide pipe is integrally formed on the bottom surface of the crossbeam of the guide frame, and the crossbeam and the guide pipe of the guide frame are provided with a guide hole penetrating up and down for mounting the rod body of the feeler assembly, and the ball is installed on the inner wall of the guide hole and rolls, the rolling contact between the ball and the rod body can effectively guide the vertical movement of the feeler assembly, reduce friction and deviation, and improve the accuracy of detection.

[0019] (3) In the present application, the height of the top plate can be flexibly adjusted by using the height adjusting mechanism. When the entire detection device needs to be transported, the height of the top plate can be lowered, thereby reducing the volume occupied by the entire device, facilitating transportation, and improving the convenience in transportation under field or complex terrain conditions. When a larger hammering force is required for the hammering mechanism, the height of the top plate can be increased by using the height adjusting mechanism, thereby increasing the relative height of the weight and the hit plate, and increasing the impact force when the weight falls. Adapt to the detection requirements of foundations of different depths.

[0020] (4) In the present application, the reinforcing mechanism is installed on the end of the extension column, which can stably install the entire device on the foundation and provide stability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained according to the structures shown in the drawings without creative labor for those skilled in the art.

[0022] Figure 1 Schematic diagram of the three-dimensional mechanism of the foundation bearing capacity detection device provided by the present application Figure 1 ;

[0023] Figure 2 Schematic diagram of the three-dimensional mechanism of the foundation bearing capacity detection device provided by the present application Figure 2 ;

[0024] Figure 3 Structure schematic diagram of the hammering mechanism in the present application

[0025] Figure 4 Structure schematic diagram of the feeler assembly cooperating with the guide frame in the present application

[0026] Figure 5 Structure schematic diagram of the reinforcing mechanism in the present application

[0027] Figure 6 Structure schematic diagram of the power assembly in the driving mechanism in the present application

[0028] Figure 7 Figure 6 is a schematic view of the connection channel and the transmission assembly in the present application;

[0029] Figure 8 Figure 7 is a structural exploded schematic view of the transmission assembly and the extension column in the present application.

[0030] The figure number explanation: 1, detection base; 2, height adjusting mechanism; 21, square tube; 22, stand column; 23, connecting beam; 24, air cylinder; 3, top plate; 4, controller; 5, hammering mechanism; 51, first mounting seat; 52, steel rope winding disc; 53, driving motor; 54, second mounting seat; 55, guide wheel; 56, electromagnet block; 57, weight; 58, sliding block; 59, limiting column; 510, sliding groove; 511, limiting angle plate; 6, guide frame; 61, guide tube; 62, ball; 63, guide hole; 7, touch probe assembly; 71, receiving disc; 71a, inner threaded tube; 72, detachable probe rod; 72a, threaded column; 72b, threaded hole; 73, tapered head; 73a, threaded rod; 73b, conical body; 74, rod body; 8, driving mechanism; 81, protection shell; 82, double-shaft motor; 83, rotating shaft; 84, first bevel gear; 85, second bevel gear; 86, connecting shaft; 87, synchronous wheel; 88, synchronous belt; 89, driving gear; 9, extension column; 91, side groove; 92, toothed part; 93, strip-shaped groove; 10, reinforcing mechanism; 101, fixed block; 102, screw rod; 103, rotating wheel; 104, bottom plate; 105, connecting sleeve; 106, guide rod; 107, ground cone; 11, moving wheel; 12, guide groove; 12a, strip-shaped protrusion; 13, connection channel; 14, U-shaped handle. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] It should be noted that all directionality indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications will also change accordingly.

[0033] In addition, the description related to "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, also not within the protection scope required by the present application.

[0034] In combination Figures 1 to 8 As shown in the figure, the device comprises a detection base 1, a height adjusting mechanism 2 and a guide frame 6 installed on the top surface of the detection base 1. The guide frame 6 is an inverted U-shaped frame and is erected at the position of the rectangular through hole of the detection base 1. A touch probe assembly 7 is slidingly installed on the guide frame 6. A top plate 3 is installed on the top of the height adjusting mechanism 2. A hammering mechanism 5 for hammering the touch probe assembly 7 is installed on the lower surface of the top plate 3. The touch probe assembly 7 comprises a rod body 74, a hit plate 71 arranged at the top end of the rod body 74, and a cone head 73 arranged at the bottom end of the rod body 74. The rod body 74 is composed of a plurality of detachable probe rods 72 connected end to end. Therefore, the length of the rod body 74 can be adjusted according to the detection requirements to adapt to the detection requirements of foundations of different depths, thereby expanding the application range.

[0035] In combination Figure 4 As shown in the figure, a guide pipe 61 is integrally formed on the bottom surface of the crossbeam of the guide frame 6. The crossbeam of the guide frame 6 and the guide pipe 61 are provided with a guide hole 63 which penetrates up and down, and the rod body 74 of the touch probe assembly 7 penetrates through the guide hole 63. A ball 62 is rollingly installed on the inner wall of the guide hole 63, and the ball 62 is in rolling contact with the rod body 74, which can effectively guide the vertical movement of the touch probe assembly 7, reduce friction and deviation, and improve the accuracy of detection. By arranging the ball 62, the wear of the rod body 74 can be reduced, and the service life of the device can be prolonged.

[0036] In combination Figure 4As shown, the top end of the detachable probe rod 72 is integrally formed with a threaded column 72a, and the bottom end is provided with a threaded hole 72b; the threaded column 72a of the adjacent two detachable probe rods 72 on the rod body 74 is matched with the threaded hole 72b, forming a detachable structure. Further, the conical head 73 includes a conical body 73b and a threaded rod 73a integrally formed on the top surface of the conical body 73b; the threaded rod 73a is matched with the threaded hole 72b of the lowermost detachable probe rod 72 of the rod body 74; an internally threaded pipe 71a is integrally formed on the bottom surface of the striker plate 71; the threaded column 72a of the uppermost detachable probe rod 72 of the rod body 74 is matched with the internally threaded pipe 71a. During detection, the striker plate 71 is driven by the beating mechanism 5 to move downward with the entire probe assembly 7, and the conical head 73 is used for insertion into the foundation for detection, and the rod body 74 is designed to be detachably spliced by multiple detachable probe rods 72, which facilitates assembly and disassembly according to different detection depth requirements, improves the applicability of the device, and reduces transportation and storage difficulty.

[0037] In combination Figure 3 As shown, the beating mechanism 5 includes a pair of first mounting seats 51 and a pair of second mounting seats 54 provided on the lower surface of the top plate 3; a steel rope winding disc 52 is rotatably installed between the two first mounting seats 51; a driving motor 53 is installed on one of the first mounting seats 51, and the output shaft of the driving motor 53 is connected with the rotating shaft of the steel rope winding disc 52, and the driving motor 53 is used to drive the steel rope winding disc 52 to rotate to wind and unwind the steel rope. A guide wheel 55 is rotatably installed between the two second mounting seats 54; the steel rope on the steel rope winding disc 52 is connected with an electromagnet block 56 after being guided by the guide wheel 55, and a weight 57 is provided below the electromagnet block 56; the weight 57 can be adsorbed on the electromagnet block 56.

[0038] A limiting angle plate 511 is installed on the lower surface of the top plate 3, and the limiting angle plate 511 is L-shaped; a through hole is formed in the horizontal plate of the limiting angle plate 511 for the steel rope to pass through; the steel rope on the steel rope winding disc 52 passes through the through hole on the limiting angle plate 511 downward after being guided by the guide wheel 55, and then is connected with the electromagnet block 56. The through hole on the limiting angle plate 511 facilitates limiting the steel rope, avoids the steel rope from being separated from the guide wheel 55 during winding and unwinding, and further ensures the stability of the lifting of the electromagnet block 56.

[0039] A pair of limiting columns 59 are installed on the lower surface of the top plate 3; a vertical sliding groove 510 is formed on each limiting column 59; two sliding blocks 58 are symmetrically arranged on the outer circumferential surface of the weight 57; and the two sliding blocks 58 are respectively slidingly installed in the sliding grooves 510 of the two limiting columns 59. By using the structure that the sliding blocks 58 and the sliding grooves 510 are matched, the verticality of the falling of the weight 57 can be guaranteed, so as to improve the accuracy of detecting the bearing capacity of the foundation. In the embodiment, the electromagnetic block 56 is used to control the release of the weight 57, so as to facilitate the accurate control of the timing of hammering and improve the accuracy of detection.

[0040] In combination Figure 2 As shown in the figure, the height adjusting mechanism 2 comprises square tubes 21, a stand column 22 and a cylinder 24; four square tubes 21 are respectively vertically installed at the positions of the four corners on the top surface of the detection base 1; the stand column 22 is slidingly inserted into the inner hole of the square tube 21; the top end of the stand column 22 is connected with the lower surface of the top plate 3; a connecting beam 23 is welded between the two square tubes 21 at the left end of the top surface of the detection base 1 and between the two square tubes 21 at the right end of the top surface of the detection base 1; the cylinder 24 is installed at the center position of the top surface of the connecting beam 23; and the piston rod of the cylinder 24 is connected with the lower surface of the top plate 3. By the extension and retraction of the cylinder 24, the top plate 3 and the components installed on the top plate 3 are pushed to rise or fall. Specifically, when the whole detection device needs to be transported, the height of the top plate 3 can be lowered, so as to reduce the volume occupied by the whole device, facilitate transportation and improve the convenience when transported in the wild or under complex terrain conditions. When a larger hammering force needs to be provided for the hammering mechanism, the height of the top plate 3 can be increased, so as to increase the relative height of the weight 57 and the hit plate 71 and increase the impact force when the weight 57 falls.

[0041] In combination Figure 2 As shown in the figure, a mobile wheel 11 is arranged at each of the positions of the four corners on the lower surface of the detection base 1, and a U-shaped handle 14 is arranged between the two square tubes 21 at the left end of the top surface of the detection base 1. By using the mobile wheel 11, the convenience of moving the device is improved. By arranging the U-shaped handle 14, it is convenient for the operator to hold when pushing the whole device to move.

[0042] In combination Figure 1 , Figures 5 to 8As shown, four extension columns 9 are slidably installed inside the detection base 1; two of them are installed inside the left end of the detection base 1, and the other two are installed inside the right end of the detection base 1; a driving mechanism 8 is arranged on the detection base 1 for driving two of the extension columns 9 to extend from the front end face of the detection base 1 and driving the other two extension columns 9 to extend from the rear end face of the detection base 1; a reinforcing mechanism 10 is installed at the end of each extension column 9. When detection is performed, the entire device is moved into position, the extension columns 9 are extended from the detection base 1, and the reinforcing mechanism 10 is supported on the ground, so that the entire device can be stably installed on the foundation, providing stability of the device.

[0043] Specifically, in combination with Figure 5 As shown, the reinforcing mechanism 10 includes a fixed block 101, a bottom plate 104, and a vertical screw rod 102 screwed on the fixed block 101; the fixed block 101 is welded on the end of the extension column 9; the upper surface of the bottom plate 104 is fixedly connected with a connecting sleeve 105; the lower end of the screw rod 102 is rotatably installed in the connecting sleeve 105; a plurality of ground cones 107 are arranged on the lower surface of the bottom plate 104; a rotating wheel 103 is fixedly connected to the upper end of the screw rod 102; a vertical guide rod 106 is slidably inserted into the fixed block 101, and the lower end of the guide rod 106 is connected with the top surface of the bottom plate 104.

[0044] In combination with Figures 6 to 8 As shown, two guide grooves 12 are respectively formed in the left end and the right end of the detection base 1; a connecting channel 13 is formed between the two guide grooves 12 at each end of the detection base 1; the driving mechanism 8 includes a power assembly installed on the top surface of the detection base 1 and a transmission assembly arranged in the connecting channel 13; a protective shell 81 is arranged on the top surface of the detection base 1, and the power assembly is installed inside the protective shell 81; the power assembly is in transmission connection with the transmission assembly; the extension column 9 is slidably installed in the guide groove 12 and is driven by the transmission assembly.

[0045] In combination with Figure 8 As shown, the transmission assembly in each connecting channel 13 includes two connecting shafts 86, and the connecting shafts 86 are rotatably inserted into the detection base 1; one of the connecting shafts 86 is arranged near the front end face of the detection base 1, and the other connecting shaft 86 is arranged near the rear end face of the detection base 1; a driving gear 89 and a synchronous wheel 87 are respectively arranged on each connecting shaft 86; a synchronous belt 88 is commonly sleeved between the synchronous wheels 87 on the two connecting shafts 86; a side groove 91 is formed on the side of the extension column 9 close to the connecting shaft 86, and a toothed portion 92 is arranged in the side groove 91.

[0046] The driving gear 89 on the connecting shaft 86 near the front end surface of the detection base 1 is engaged with the toothed part 92 on the extension column 9 extending from the front end surface of the detection base 1.

[0047] In combination Figure 6 As shown, the power assembly comprises a double-head motor 82 mounted on the upper surface of the detection base 1, and a rotating shaft 83 connected to each end of the double-head motor 82; a first bevel gear 84 is mounted on one end of the rotating shaft 83 away from the double-head motor 82; a second bevel gear 85 is mounted on the top end of the connecting shaft 86 near the front end surface of the detection base 1, and the first bevel gear 84 is engaged with the second bevel gear 85. The double-head motor 82 can synchronously drive the two rotating shafts 83 to rotate, thereby driving the transmission assembly in the channel 13 connected to the two ends of the detection base 1 to move, and thereby synchronously driving the four extension columns 9 to extend or retract.

[0048] Further, a strip-shaped protrusion 12a is arranged on the bottom surface of the guide groove 12, and a strip-shaped groove 63 is arranged on the bottom surface of the extension column 9, the strip-shaped protrusion 12a and the strip-shaped groove 63 are in sliding cooperation, thereby ensuring that the extension column 9 stably extends and retracts.

[0049] In this embodiment, a controller 4 is arranged on one of the connecting beams 23, and the controller 4 is in control connection with the driving motor 53, the electromagnet block 56 and the double-shaft motor 82. The controller 4 is used to facilitate the operation of the device, thereby reducing the complexity of the operation and improving the work efficiency.

[0050] When the foundation bearing capacity detection device is used for foundation bearing capacity exploration and detection, the specific process is as follows:

[0051] After the whole device is moved to the detection position by the moving wheels 11, the driving mechanism 8 is started, the double-head motor 82 drives the rotating shaft 83 to make the first bevel gear 84 engage with the second bevel gear 85, thereby driving the second bevel gear 85 to rotate the connecting shaft 86, the two connecting shafts 86 in the same connecting channel 13 synchronously rotate under the action of the synchronous wheel 87 and the synchronous belt 88, thereby driving the corresponding driving gear 89 to rotate, and since the driving gear 89 is engaged with the toothed part 92 of the extension column 9, the corresponding extension column 9 can be driven to extend from the detection base 1.

[0052] After the extension column 9 extends, the screw rod 102 is rotated on the fixed block 101 by rotating the rotating wheel 103, thereby making the bottom plate 104 descend, and under the action of the guide rod 106, the bottom plate 104 can stably descend, and a plurality of ground cones 107 below the bottom plate 104 are inserted into the foundation, thereby completing the fixation of the device.

[0053] The height adjusting mechanism 2 adjusts the extension length of the piston rod through the air cylinder 24, and then makes the column 22 slide in the square tube 21, so as to flexibly adjust the height of the top plate 3, and then adjust the relative height of the weight 57 of the hammering mechanism 5 and the hit disc 71 of the probing assembly 7, so as to adapt to the detection requirements of different depths.

[0054] The hammering mechanism 5 drives the steel rope winding disc 52 to rotate through the driving motor 53, so as to conveniently wind the steel rope to drive the electromagnetic block 56 to ascend and descend, and control the falling of the weight 57 through the on-off electricity of the electromagnetic block 56, so as to hammer the hit disc 71 of the probing assembly 7. Through the structure matched by the sliding block 58 and the sliding groove 510, the verticality of the falling of the weight 57 can be guaranteed, and the precision of the hammering is improved.

[0055] When the bearing capacity of different depths needs to be detected, the number of the detachable probe rods 72 is increased or reduced, and the length of the rod body 74 is adjusted, so as to detect the bearing capacity of the foundation of different depths. In the detection process, the rod body 74 of the probing assembly 7 reduces the friction through the ball 62, ensures the vertical movement, and improves the service life of the rod body 74 in the probing assembly 7.

[0056] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields under the inventive concept of the present application, and the contents of the specification and drawings are included in the patent protection scope of the present application.

Claims

1. A ground bearing capacity detection device characterized by comprising: Including detection base (1), and install height adjusting mechanism (2) on the top surface of detection base (1), guide frame (6); The guide frame (6) is a inverted U-shaped frame, and is arranged at the rectangular through hole position of the detection base (1); The probe assembly (7) is slidably installed on the guide frame (6); The top plate (3) is installed on the top of the height adjusting mechanism (2); The percussion mechanism (5) for hammering the probe assembly (7) is installed on the lower surface of the top plate (3); The probe assembly (7) comprises a rod body (74), a hit disc (71) arranged at the top end of the rod body (74), and a tapered head (73) arranged at the bottom end of the rod body (74); the rod body (74) is composed of a plurality of detachable rods (72) connected end to end; Four extension columns (9) are slidably installed in the detection base (1); two of the four extension columns (9) are installed in the left end of the detection base (1), and the other two are installed in the right end of the detection base (1); a driving mechanism (8) is arranged on the detection base (1) to drive two of the extension columns (9) to extend from the front end surface of the detection base (1) and drive the other two extension columns (9) to extend from the rear end surface of the detection base (1); a reinforcing mechanism (10) is installed at the end of each extension column (9); Two guide grooves (12) are respectively arranged at the left end and the right end of the detection base (1); a connecting channel (13) is arranged between the two guide grooves (12) at each end of the detection base (1); the driving mechanism (8) comprises a power assembly installed on the top surface of the detection base (1) and a transmission assembly arranged in the connecting channel (13); a protective shell (81) is arranged on the top surface of the detection base (1), and the power assembly is installed in the protective shell (81); the power assembly is in transmission connection with the transmission assembly; the extension column (9) is slidably installed in the guide groove (12) and is driven by the transmission assembly; The transmission assembly in each connecting channel (13) comprises two connecting shafts (86), and the connecting shafts (86) are rotatably inserted into the detection base (1); one of the connecting shafts (86) is arranged near the front end surface of the detection base (1), and the other connecting shaft (86) is arranged near the rear end surface of the detection base (1); a driving gear (89) and a synchronous wheel (87) are respectively arranged on each connecting shaft (86); the synchronous wheels (87) on the two connecting shafts (86) are jointly sleeved with a synchronous belt (88); a side groove (91) is formed in the side of the extension column (9) close to the connecting shaft (86), and a tooth part (92) is arranged in the side groove (91); The driving gear (89) on the connecting shaft (86) near the front end surface of the detection base (1) is in engagement with the tooth part (92) on the extension column (9) extending from the front end surface of the detection base (1); The driving gear (89) on the connecting shaft (86) near the rear end surface of the detection base (1) is in engagement with the tooth part (92) on the extension column (9) extending from the rear end surface of the detection base (1); The power assembly comprises a double-head motor (82) mounted on the upper surface of the detection base (1), and a rotating shaft (83) is connected to each end of the double-head motor (82); A first bevel gear (84) is mounted at the end of the rotating shaft (83) away from the double-head motor (82), and a second bevel gear (85) is mounted at the top end of the connecting shaft (86) close to the front end surface of the detection base (1), and the first bevel gear (84) is engaged with the second bevel gear (85).

2. The ground bearing capacity detection apparatus according to claim 1, wherein An integrated guide pipe (61) is formed on the bottom surface of the crossbeam of the guide frame (6); The crossbeam of the guide frame (6) and the guide pipe (61) are provided with a guide hole (63) penetrating up and down, and the rod body (74) of the probe assembly (7) penetrates the guide hole (63); A rolling ball (62) is installed on the inner wall of the guide hole (63) and is in rolling contact with the rod body (74).

3. The ground bearing capacity detection apparatus according to claim 1, wherein A threaded column (72a) is integrally formed at the top end of the detachable probe rod (72), and a threaded hole (72b) is arranged at the bottom end; the threaded column (72a) and the threaded hole (72b) of the adjacent two detachable probe rods (72) on the rod body (74) are matched; The tapered head (73) comprises a tapered body (73b) and a threaded rod (73a) integrally formed on the top surface of the tapered body (73b); the threaded rod (73a) is matched with the threaded hole (72b) of the lowermost detachable probe rod (72) on the rod body (74); An internally threaded pipe (71a) is integrally formed on the bottom surface of the hit plate (71); the threaded column (72a) of the uppermost detachable probe rod (72) on the rod body (74) is matched with the internally threaded pipe (71a).

4. The ground bearing capacity detection apparatus according to claim 1, wherein The hammering mechanism (5) comprises a pair of first mounting seats (51) and a pair of second mounting seats (54) arranged on the lower surface of the top plate (3); a steel rope winding disc (52) is rotatably mounted between the two first mounting seats (51); a driving motor (53) is mounted on one of the first mounting seats (51), and the output shaft of the driving motor (53) is connected with the rotating shaft of the steel rope winding disc (52); A guide wheel (55) is rotatably mounted between the two second mounting seats (54); the steel rope on the steel rope winding disc (52) is connected with an electromagnet block (56) after being guided by the guide wheel (55), and a weight (57) is arranged below the electromagnet block (56); the weight (57) can be adsorbed on the electromagnet block (56).

5. The ground bearing capacity detection apparatus according to claim 4, wherein A limiting angle plate (511) is mounted on the lower surface of the top plate (3), and the limiting angle plate (511) is in L shape; a through hole is formed in the horizontal plate of the limiting angle plate (511) for the steel rope to penetrate; the steel rope on the steel rope winding disc (52) is connected with the electromagnet block (56) after being guided by the guide wheel (55) and penetrating the through hole in the limiting angle plate (511) downward; A pair of limiting columns (59) are installed on the lower surface of the top plate (3); a vertical sliding slot (510) is formed on each limiting column (59); two sliding blocks (58) are symmetrically arranged on the outer circumferential surface of the weight (57); and the two sliding blocks (58) are respectively slidingly installed in the sliding slots (510) on the two limiting columns (59).

6. The ground bearing capacity detection apparatus of claim 1, wherein The height adjusting mechanism (2) comprises square tubes (21), vertical columns (22) and air cylinders (24); Four square tubes (21) are respectively vertically installed at the four corner positions on the top surface of the detection base (1); The vertical column (22) is slidingly inserted into the inner hole of the square tube (21); and the top end of the vertical column (22) is connected with the lower surface of the top plate (3); Two connecting beams (23) are respectively welded between the two square tubes (21) at the left end of the top surface of the detection base (1) and between the two square tubes (21) at the right end of the top surface; the air cylinder (24) is installed at the center position on the top surface of the connecting beam (23); and the piston rod of the air cylinder (24) is connected with the lower surface of the top plate (3).

7. The ground bearing capacity detection apparatus of claim 1, wherein The reinforcing mechanism (10) comprises a fixing block (101), a bottom plate (104) and a vertical screw rod (102) which is screwed on the fixing block (101); The fixing block (101) is welded on the end head of the extending column (9); The upper surface of the bottom plate (104) is fixedly connected with a connecting sleeve (105); and the lower end of the screw rod (102) is rotatably installed in the connecting sleeve (105); A plurality of ground wedges (107) are arrayed on the lower surface of the bottom plate (104); A rotating wheel (103) is fixedly connected on the upper end of the screw rod (102); A vertical guide rod (106) is slidingly inserted into the fixing block (101), and the lower end of the guide rod (106) is connected with the top surface of the bottom plate (104).

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